中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
8期
91-94
,共4页
张晓玉%王安民%张傲翔%姚征%李翔%邸潇菲
張曉玉%王安民%張傲翔%姚徵%李翔%邸瀟菲
장효옥%왕안민%장오상%요정%리상%저소비
构造煤%测井解释%煤体结构%煤粉特征%韩城区块
構造煤%測井解釋%煤體結構%煤粉特徵%韓城區塊
구조매%측정해석%매체결구%매분특정%한성구괴
tectonoclastic coal%logging trace interpretation%coal texture%coal fines characteristics%Hancheng block
构造煤的发育是产生煤粉的关键,破碎后煤岩会产生固有煤粉,而疏松的结构会使得煤岩更容易受钻井、压裂和排采等工程扰动影响,进而产生更多的煤粉。韩城区块经历多期构造,断裂构造造成的煤岩脆性变形、褶皱拉伸与挤压造成的煤岩韧性变形导致构造煤发育。以采集煤样宏观特征差异划分煤体结构类型,运用测井解释识别不同煤体结构类型煤,从纵向和横向上总结区块煤体结构分布规律,并揭示不同煤体结构类型对产出煤粉形态、浓度、粒度特征的影响。
構造煤的髮育是產生煤粉的關鍵,破碎後煤巖會產生固有煤粉,而疏鬆的結構會使得煤巖更容易受鑽井、壓裂和排採等工程擾動影響,進而產生更多的煤粉。韓城區塊經歷多期構造,斷裂構造造成的煤巖脆性變形、褶皺拉伸與擠壓造成的煤巖韌性變形導緻構造煤髮育。以採集煤樣宏觀特徵差異劃分煤體結構類型,運用測井解釋識彆不同煤體結構類型煤,從縱嚮和橫嚮上總結區塊煤體結構分佈規律,併揭示不同煤體結構類型對產齣煤粉形態、濃度、粒度特徵的影響。
구조매적발육시산생매분적관건,파쇄후매암회산생고유매분,이소송적결구회사득매암경용역수찬정、압렬화배채등공정우동영향,진이산생경다적매분。한성구괴경력다기구조,단렬구조조성적매암취성변형、습추랍신여제압조성적매암인성변형도치구조매발육。이채집매양굉관특정차이화분매체결구류형,운용측정해석식별불동매체결구류형매,종종향화횡향상총결구괴매체결구분포규률,병게시불동매체결구류형대산출매분형태、농도、립도특정적영향。
The development of tectonoclastic coal is the key to produce coal fines. Inherent coal fines will be produced after crushing, while the loose structures will make coal easier to be exposed to drilling, fracturing and drainage engineering impacts and produced more coal fines. The Hancheng block had experienced multistage faulted structures caused coal lithologic brittle deformation, folded ex-tension and compression caused coal lithologic ductile deformation made tectonoclastic coal well developed. Taking macroscopic fea-ture differences between coal samples partitioned coal texture types, using logging trace interpretation identified different coal texture types. Vertically and horizontally summarized coal texture distribution pattern, and revealed different coal texture type impacts on coal fines configuration, concentration, and particle size characteristics.