Frac technique

1.Slickwater System      

The water fracturing technique is a fracturing measure which induces the fracture of the conductivity by injecting the water injection into the stratum with the additives such as Friction reducing agent, clay stabilizer and auxiliary discharge agent.

2.HT Fracture Fluid

Characteristic：

(1)Mainly used in the temperature higher than 160 ℃ to 190 ℃ oil and gas layer fracturing operation

(2)Breaking completely

(3) Low residue

(4) Resistance to shear

(5)At room temperature, half crosslinked gel can be formed, which can reduce the friction resistance, and the carrying capacity is good.

3.Temporary Plugging Fracturing Technology

Technical Overview

It is mainly aimed at the horizontal well horizontal section, and it is widely used in the Fracture. Most section reconstruction in each segment of the fracture morphology basically is one of the traditional single fracture, the fracture tends to form a main crack in the minimum principal stress direction, this kind of transformation is the smallest size of cracks, the use of reserves is the least. Therefore, the yield of single well is low, decreasing rapidly and the final output is low

Temporary plugging fracturing technology is through one or more delivery within the period of temporary plugging agent plugging has cracks, so that the fracturing fluid, and in other parts of the layer or internal pressure to open one or more new cracks, achieve the goal of selective fracturing, in order to gain more effective than conventional fracturing of single well adapted volume

This kind of temporary plugging agent is a high strength water-soluble temporary plugging agent, which can withstand the pressure of 80MPA and completely dissolve in water at high temperature, and then come back with the fracturing fluid

4.Fracturing Tracer Technique

To quantitatively evaluate the contribution of liquid/gas production in horizontal Wells by using non-radiated/non-toxic, trace element oil tracers that do not react with other elements. High adsorption with oil, but insoluble in water. Once the tracer enters the formation and meets the oil, it is emulsified immediately with oil. Each tracer is uniquely identified. When draining, the laboratory measures the content of the tracer and determines the contribution of each segment.

5.Fully Soluble Bridge Plug

Target Completions has a reputation in the international completion tool field. Note: the domestic translation is called Target completion company/taggart koplison. At present, in Changning, Weiyuan block, southwest oil and gas field company and Chuanqing drilling have applied more than 3000 sets of chase diameter and full soluble bridge plug. Other cementing and completion tools can be provided, which is one of the leaders in the current bridge field. The company has obtained the agency of Target Completions.

At present, 77 sets have been implemented in China and the success rate is 100%. At present, the H5 platform of southwest oil and gas branch and the shengli oilfield of sinopec and the northeast bureau are 64 sets。

Large diameter, no drilling, high operating efficiency -- can be used for fracturing construction of over 2000 meters long horizontal section.