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hydraulic fracturing process

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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hydraulic fracturing process
Study on the reutilization of clear fracturing flowback ...
Study on the reutilization of clear fracturing flowback ...

19/11/2014, · As mentioned above, the clear fracturing flowback fluid is mainly composed of VES which is usually cationic ammonium surfactant and AOS is anionic. When cationic and anionic surfactants are used together, the strong electrostatic attraction leads to the adsorption of more surfactant molecules on the oil/water interface [36] , which results in the appearance of lowest IFT in mixed catanionic systems.

A Comprehensive Model for Estimating Stimulated Reservoir ...
A Comprehensive Model for Estimating Stimulated Reservoir ...

After the fracturing operation is completed, the effective fracture system connecting the wellbore is filled with fracturing fluid approximately. Thus, after the well is opened for flowback operation and before production, the volume of the recovered fracturing fluid under the ground is filled with gas renewedly.

Energies | Special Issue : Shale Oil and Shale Gas Resources
Energies | Special Issue : Shale Oil and Shale Gas Resources

The Chang 7 reservoir ,in Changqing oilfield, is rich in tight oil. However, ... The object of the paper is the prediction of ,flowback fluid, composition at a laboratory scale, ... and regression equations describing the influence of rocks and ,fracturing fluid, parameters on the ,flowback fluid, composition were proposed.

A semi‐analytical model for capturing dynamic behavior of ...
A semi‐analytical model for capturing dynamic behavior of ...

Abstract Hydraulic ,fracturing, has been successfully employed for unconventional oil and gas recovery for decades. During ,flowback,, the closure of the fracture may exhibit with the pressure drop of ...

Journal of Chemical and Pharmaceutical Research 2013 5 ...
Journal of Chemical and Pharmaceutical Research 2013 5 ...

Displacement ,fluid, guar gum based ,fluid, 1.6 6.0 59:59 RESULTS AND DISCUSSION 3.1. Test Results The well is a production well located in a structure of ,Changqing Oilfield,. The fractured layer is CL3, and its thickness is 9.0 m. The reservoir porosity is 8%, and the permeability is 0.04 mD. Sand ,fracturing, …

ePosters - SPE Asia Pacific Hydraulic Fracturing ...
ePosters - SPE Asia Pacific Hydraulic Fracturing ...

Evaluation of Stage Contribution and Interwell Connectivity during Initial ,Flowback, and Oil Production in a Tight Oil Horizontal Stimulation Using Tracer Technology . Y.S. Seong, Tracerco China; S. Yongbin, EverGreen Energy Services Llc. 181823: A New Acid ,Fracturing Fluid, System for High Temperature Deep Well Carbonate Reservoir

Reasons for the low flowback rates of fracturing fluids in ...
Reasons for the low flowback rates of fracturing fluids in ...

Based on the experimental and field data, ,fracturing fluid flowback, rates and gas production rates of 9 wells were analyzed. It is indicated that the same block follows an overall trend, namely, the lower the ,flowback, rates, the more developed the micro fractures, the better the volume stimulation effect and the higher the gas production rates.

Characteristics of imbibition in tight oil reservoirs from ...
Characteristics of imbibition in tight oil reservoirs from ...

The ,fluid, in the larger pores is less affected by the core wall's surface, so the relaxation speed is slow and the T2 is long. The ,fluid, in the small pores is relatively strong near the core wall's surface, the relaxation speed is slightly faster, and the T2 is short. MRI can be used to obtain a two‐dimensional image of a slice in any direction.

Characteristics of imbibition in tight oil reservoirs from ...
Characteristics of imbibition in tight oil reservoirs from ...

The ,fluid, in the larger pores is less affected by the core wall's surface, so the relaxation speed is slow and the T2 is long. The ,fluid, in the small pores is relatively strong near the core wall's surface, the relaxation speed is slightly faster, and the T2 is short. MRI can be used …

Energies | Special Issue : Shale Oil and Shale Gas Resources
Energies | Special Issue : Shale Oil and Shale Gas Resources

The Chang 7 reservoir ,in Changqing oilfield, is rich in tight oil. However, ... The object of the paper is the prediction of ,flowback fluid, composition at a laboratory scale, ... and regression equations describing the influence of rocks and ,fracturing fluid, parameters on the ,flowback fluid, composition were proposed.

Reasons for the low flowback rates of fracturing fluids in ...
Reasons for the low flowback rates of fracturing fluids in ...

Based on the experimental and field data, ,fracturing fluid flowback, rates and gas production rates of 9 wells were analyzed. It is indicated that the same block follows an overall trend, namely, the lower the ,flowback, rates, the more developed the micro fractures, the better the volume stimulation effect and the higher the gas production rates.

Agenda - SPE Asia Pacific Hydraulic Fracturing Conference ...
Agenda - SPE Asia Pacific Hydraulic Fracturing Conference ...

Development and Application of a Recyclable ,Fluid, for Sulige Tight Gas ,Fracturing, H. Shi, ,Changqing Oilfield,, CNPC;National Engineering Laboratory for Exploration and Development of Low-Perm; X. Li, L. Ding, Y. Wang, X. Qiu, N. Li, ,Changqing Oilfield,, CNPC; National Engineering Laboratory for Exploration and Development of Low-Per: 181861

Agenda - SPE Asia Pacific Hydraulic Fracturing Conference ...
Agenda - SPE Asia Pacific Hydraulic Fracturing Conference ...

Development and Application of a Recyclable ,Fluid, for Sulige Tight Gas ,Fracturing, H. Shi, ,Changqing Oilfield,, CNPC;National Engineering Laboratory for Exploration and Development of Low-Perm; X. Li, L. Ding, Y. Wang, X. Qiu, N. Li, ,Changqing Oilfield,, CNPC; National Engineering Laboratory for Exploration and Development of Low-Per: 181861

Geological characteristics and ‘‘sweet area’’ evaluation ...
Geological characteristics and ‘‘sweet area’’ evaluation ...

PetroChina ,Changqing Oilfield, Company has developed the first 100-million-ton tight ,oil field,—Xin’anbian ,Oilfield,, making ,Changqing Oilfield, form a capacity of 1 million tons per annum. With this discovery, which is a milestone in China’s oil history, in 2014 tight oil was integrated officially into the category for reserves evaluation.

A Comprehensive Model for Estimating Stimulated Reservoir ...
A Comprehensive Model for Estimating Stimulated Reservoir ...

After the fracturing operation is completed, the effective fracture system connecting the wellbore is filled with fracturing fluid approximately. Thus, after the well is opened for flowback operation and before production, the volume of the recovered fracturing fluid under the ground is filled with gas renewedly.

14th U.S. · China Oil & Gas Industry Forum
14th U.S. · China Oil & Gas Industry Forum

This technique has been applied in nearly 10000 wells ,in Changqing Oilfield,, Daqing ,Oilfield, and so on. The cost ,of fracturing, treatment was cut down 600 million RMB. (2) Successful development of ultra-low concentration ,fracturing fluid, system realized low cost ,fracturing, treatment. The weak crosslinked gel sand carrying condition, and the sand

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