ZPEC Mudlogging department has 12 well-equipped mudlogging teams / units, 82 employees (21 foreign employees), more than 80% of them have junior college degree or above, including 15 people with senior and intermediate technical titles and 35 people with junior technical titles. And we continue to have new people in addition, some of them have highly educated talents, experienced technical experts and so on. ZPEC Mudlogging equips with excellent device and provides conventional mud logging, comprehensive mudlogging, geophysical & geochemical mudlogging, gas logging, hydrological mudlogging, CBM mudlogging and other unconventional oil and gas logging.

ZPEC Mudlogging footsteps at home and abroad, provides mud logging services in many famous oilfields located both in oversea and domestic. Such as Garraf, Badra, Rumaila, East Baghdad, Block8, Block12, Block10 and Yamama oilfields in Iraq, An Bian oilfield in Kazakhstan, CNPC Changqing, Tarim, Sinopec Ordos, Yanchang, Xinjiang Wensu and other important oil and gas fields in China. It has rich mudlogging technology and experience in Marine and Continental facies, "high temperature, high pressure, high H2S" formation, high difficulty well, ultra-deep well, large inclination directional well, extended reach horizontal well, multi-branch horizontal well and other complex drilling process Wells.

Based on the traditional mud logging engineering system as a platform, integrating of multi professional informations and block history informations, carrying out close cooperation with the petroleum colleges and universities, ZPEC Mudlogging is committed to the formation of modern mud logging technology based on the geology analysis and geo-steering.

ZPEC Mudlogging has the international advanced level of SK-CMS, SK-DMS and SK-2000 series comprehensive mudlogging instrument, which can provide variety of service. The instrument integrates many advanced technologies such as explosion-proof CAN bus technology, fast chromatographic technology, MWD technology, field geological analysis instrument joint application technology and so on.

The comprehensive unit is a pressurized system (Ex PⅡ), which adheres to explosion-proof standard of IEC79-3 or GB38.36.5-2000, the fire proof standard is accorded with SOLAS A-0 (1992), and the DNV certification (A-O, Zone 2). The whole unit is anti-shock, anti-vibration, and anti-bump, Indoor noise is no more than 70 Db, power input of unit can alternative for 220V, 380V and 480V, frequency range is from 45 to 60Hz, and working area is accorded with IEC79-13. The unit can be combined with the needs of LWD, MWD measurement data and remote real-time transmission to achieve logging-oriented technology and remote monitoring, can be applied to the onshore and offshore drilling platform.

Main features：

（1）Differential chromatograph: Solve the identification of true and false oil and gas shows caused by drilling fluid mixed crude oil and lubricated chemicals.

（2）Explosive-proof CAN bus transmission: simplified sensor installation, easy to expand, automatic fault diagnosis, self-protection.

（3）Remote transmission: realizing the remote real-time information transmission between well site and base.

（4）Double hot backup: ensure the normal operation and the mud logging data security.

（5）Well site information center: database structure and WITS standard interface is open to realize the integration with third party data.

（6）Paperless recording: the realization of paperless recording and re-display the operation process, and generate PDF document.

（7）Professional abnormal warning: The expert system can reduce the occurrence of engineering accident, reduce the operation risk, and ensure the safety of drilling operation.

（8）Comprehensive evaluation of oil and gas: integrated the engineering, gas logging, geological analysis and other information as a whole, greatly improve the rate of compliance of the interpretation of the oil, gas and water zones.

2.CMS Mud Logging System：

CMS software system consists of data acquisition software package and data processing software package. In Windows operating environment, by using the modular structure design, reliability of long time operation can achieve, CMS interface can display in Chinese, English and Russian languages, and metric and custom unit can be converted freely.

Main features：

A.Flexible output.

B.Panoramic back play of drilling data.

C.Modular design with high stability.

D.WITS well site information center.

E.Application software is rich function and widely used in the international project.

3.Fast FID Chromatograph：

SK-3Q04 hydrogen flame chromatograph is an automatic fast gas chromatograph, which integrates intelligent high stable performance and quick analysis, it can detect hydrocarbon in drilling fluid continuously and analyze hydrocarbon component (C1-nC5) by selecting analysis period of 30 seconds or 90 seconds, and the complete components analysis and quick back blow of heavy constituent at the same time. This instrument is beneficial to the discovery and evaluation of oil and gas reservoirs in thin oil layer and under the fast drilling conditions.

Main features:

A.New process, unique design, to ensure the accurate determination of C1-nC5.

B.With a high degree of separation, C1/C2 separation degree >0.95.

C.The use of large screen LCD, touch screen operation.

D.Full intelligent control, automatic ignition, automatic zero calibration, automatic fault diagnosis.

E.With a variety of output interface, can be matched with a variety of instruments.

4. Advanced Gas Analysis (C1~C8)

The SK-3Q05 hydrogen flame chromatograph expands the analysis objects of hydrocarbon components in traditional mud logging gas logging to nC8. It can realize the on-line analysis of hydrocarbon components from C1 to C8 within 120 seconds, which greatly improves the analysis ability of hydrocarbon components of on-site chromatographs. It provides a reliable and sufficient basis for the on-site identification of oil and gas layers and the further solution to the difficult problems of interpretation and evaluation of the water invasion, water washing and water flooding degrees of reservoir layers, and enriches the means of interpretation and evaluation of oil, gas and water in reservoir layers on site. The instrument adopts an intelligent design with electronic pressure control (EPC), which improves the control precision and reliability of the instrument, and can realize the intelligent switching of the detection gas circuit.

Main features:

A.Adopt the whole system design and proprietary component separation method to ensure the accurate determination of C1-nC8.

B.The analysis object reaches nC8, and it can provide 16 parameters online, including total hydrocarbons, benzene, toluene, etc. It can also be extended to nC10 to provide more gas logging parameters, offering a more sufficient basis for the interpretation and evaluation of on-site oil, gas and water layers.

C.Separate C1--nC8 (including benzene, toluene, naphthenes) within 120 seconds, and separate C1--nC5 within 30 seconds.

D.Separation efficiency: The resolution of C1/C2 > 0.9.

E.It has a variety of output interfaces and can be matched with multiple types of instruments.

5. Coriolis densitometer and constant deaerator

ZPEC Mudlogging has the international advanced level of SK-CMS, SK-DMS and SK-2000 series comprehensive mudlogging instrument, they can afford the mudlogging services as follows:

1.Comprehensive Mud Logging Service

The CMS and DMS mud logging units, which were equipped with advanced CAN bus transmission technology, fast chromatography technology and dual-machine thermal redundancy backup technology, had provided professional, accurate, stable and efficient comprehensive logging services for many oil fields in many countries.

2.Special Logging Service

ZPEC has advanced two-dimensional and three-dimensional quantitative fluorescence instruments, XRF- X-ray fluorescence spectral elemental analysis instrument, XRD-X-ray diffraction mineral analysis instrument, and can provide multiple accurate geological analysis both in wellsite and laboratory.

3.Geo-steering Service

StarLogging geological guidance software is a comprehensive geological guidance software system. Supported by the comprehensive geological evaluation technology of horizontal Wells and targeted at the field requirements, it achieves the purpose of computer science and intelligent analysis and interpretation by combining artificial formation correlation, horizon confirmation, bit position prediction and other analysis methods with the comprehensive interpretation method of computer system and human brain.

The system integrates seismic profile loading, geological steering, geometric steering, well trajectory design and control, multi-branch well display, offset well anti-collision scanning and other functions. It utilizes comprehensive logging data combined with MWD/LWD to rapidly analyze and evaluate the actual situation of normal drilling, reducing drilling risks caused by uncertain geological targets and reducing production costs. It provides technical support for the exploitation of complex oil and gas reservoirs, such as the remaining oil at the top of thin and thick oil reservoirs, and effectively controls the trajectory of well drilling in oil reservoirs. By using this software and mudlogging data, ZPEC had already successfully provided geo-steering service for CNPC Changqing oilfield and Sichuan Changning oilfield.

5.Core analysis processing

Our department introduced GMS312 Rolling Core Logger produced in the UK, which can continuously measure the GR energy spectrum curve of the core, in API units or counts. Meanwhile, white light photos and fluorescence photos of the core are collected with special instruments, and the pictures were combined together. The equipment was well received by the client in the B10 YAMAMA project service in Iraq.

ZPEC Mudlogging always insists on the principle of "timely, accurate, efficient, high-quality", adheres to QHSE policy, dedicates to provide clients with first-class service to strive for greater and greater development.

1. Domestic market：

Since its establishment, ZPEC ML has provided the mudlogging service of regional exploration well, appraisal well and production well in Changqing Oilfield, Yanchang oilfield, Tarim Oilfield, Wenshu Oilfield and other blocks. It has completed more than 1,800 Wells in total, with 100% accuracy rate of data, 100% oil and gas discovery rate, 100% accuracy rate of coring horizon and completion horizon, and more than 85% of profile conformity rate. The data error rate is less than 0.3%, and it has made outstanding contributions to the exploration and development of various oil and gas fields, which is highly praised by Party A.

2. Oversea market：

2014 ZPEC Mudlogging relies on good reputation and excellent professional skills to go abroad, Providing mudlogging services for exploration, appraisal, production and horizontal Wells in the Garraf, Badra, Block12, Rumaila, East Baghdad, Block8, block10 and Yamama oilfields in Iraq, An Bian oilfield in Kazakhstan, a total of 113 Wells have been completed by the end of 2024. And we have received testimonials from various clients which affirmed the quality of our service.

Badra Oil Field, Iraq：

Company: Gazprom Neft company

Construction period: 2014 - 2018

Number of completed Wells: 20 deep Wells

Badra oilfield where all wells are super deep well operated by Gazprom Neft company. Regional geological structure is complex with many faults and multi-lithology. Upper strata is continental facies, middle is evaporite facies, lower strata is carbonate facies, and the high pressure salt water layer and low pressure loss layer develop, overflow and well loss often occur, the reservoir contains H2S, drilling and logging are extremely difficult in this area. ZPEC Mudlogging carries forward with a strict, meticulous and serious working style. By utilizing a series of logging methods, it can discover and interpret oil and gas shows, decide coring point and casing depth, predict and discover high pressure salt water zone , mud loss zone, drilling accident timely. So far it has successfully completed logging services for totally 20 wells. Due to the excellent Mudlogging services, ZPEC Mudlogging got an Appreciate letter from Gazprom Neft Company. 

Block12 oil field in Iraq

Company: Bashneft 

Construction period: 2016 - 2019 

Number of Wells completed: 2 exploratory Wells 

From Sep 2016 to Nov 2019, ZPEC Mudlogging had successfully finished mud logging services of 2 exploratory wells for Bashneft Company in Iraq. Salman-1 is the first exploration well, collecting formation information and picking up core point are very important. But the nearest offset well is 77km far away, so the useful reference information is scarce. In spite of this, we had caught every formation tops and coring points by rigorous and meticulous working and efficiently finished mud logging services. During drilling the well, the total 18 coring operations were successfully performed, with total 28 barrels, core length 241.10 meters and core recovery 99.12 %.

Block8 Oil Field, Iraq

Company: PPLA Company of Pakistan

Construction period: 2019-2020

Number of Wells completed: 1 exploratory well

As the first exploratory well in the Block8 of Iraq, Madain-1 has no offset well data to be reference and the geological situation is not clear. By collecting the geology information of near oilfield, analyzing regional comprehensive geological and sedimentary facies, ZPEC accurately gathered the stratigraphic information, forecasted possible risks in the drilling process, prepared risk measures in advance, successfully avoid the risks which are caused by the big difference between drilling proposal and actual situation, safely and efficiently completed the mud logging service, obtained company's highly approval and praise.

Garraf Oil Field, Iraq

Company: PCIHBV

Construction period: 2014-2015; 2018-2022; 2024 to present

Number of Wells completed: 28 production wells

In March 2014, ZPEC Mudlogging started to provide Mud Logging services in Garraf of Iraq for HCIHBV, including 3 different contracts. In view of the excellent performance of ZPEC mudlogging stuff, the customer awarded us a commendatory letter.

Rumila Oil Field, Iraq

Company: BP Oil Company

Construction period: 2018 to present

Number of completed Wells: 58 production Wells

Successfully completed mud logging service for each well with high quality through rigorous and meticulous work, ZPEC obtained highly appreciate from BP company.

East Baghdad Oil Field, Iraq

Company: MdOC

Construction period: 2017 - 2018

Number of completed Wells: 3 production Wells

From Oct 2017 to Nov 2018, ZPEC Mudlogging had successfully finished 3 highly deviated directional wells mudlogging services in east Baghdad of Iraq for MdOC.

An Bian Oil Field, Kazakhstan

Company: ZPEC

Construction period: 2024 to present

Number of completed Wells: 1 exploratory Well