GB/T 40545-2021Guidelines of hydraulic fracturing for coalbed methane well (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document stipulates the data collection, fracturing operation plan design, construction preparation, on-site construction, post-construction pipeline Management, quality, health, safety and environmental protection, construction summary and acceptance, etc.

This document is applicable to coalbed methane vertical wells and directional well fracturing operations, and can be implemented by reference to other well types such as horizontal wells.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

AQ1081 Fire and Explosion Safety Regulations for Surface Mining of Coal Bed Methane

NB/T 10034 Water-based fracturing fluid performance evaluation method for coalbed methane reservoirs

NB/T 10038 Small-scale fracturing test design and evaluation specification for coalbed methane wells

NB/T 14023 Recommended method for determination of long-term conductivity of shale proppant pack

SY/T 5108 Proppant performance test method for hydraulic fracturing and gravel packing operations

SY/T 5325 Technical Specification for Perforating Operation

SY/T 5467 Casing string pressure test specification

SY/T 5587.5 Conventional workover operation procedures Part 5: Preparation of wellbore for downhole operations

SY/T 5587.9 Regulations for conventional workover operations Part 9: Well head replacement

SY/T 5727 Safety Regulations for Downhole Operations

SY/T 5952 Downhole process string tool legend for oil, gas and water wells

Use and maintenance of SY/T 6270 oil and gas drilling equipment cementing and fracturing manifold

SY/T 6302 Test method for conductivity of fracturing proppant

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Data collection

Data collection includes but is not limited to. geological profile, drilling and completion data, logging data, logging data, coal core and core analysis data, coal Layer and roof and floor in-situ stress and rock mechanics parameter test data, underground fluid data, coal seam test data, fracturing construction data of surrounding wells, production Dynamics, villages near the well site, water sources and the development of adjacent coal mines, etc.

5 Fracturing operation plan design