Insert the words at the sentence level: fill in the blanks with missing words (the first letter of each word is given). 1. W... development means the construction of one or more wells. 2. T drilling r. is removed. 3. C... is an important phase as well as testing oper tions. 4. Site a.. involves plugging the w.... 5. Exploration involves the searc for oil or natural gas d... .6. T... is installed in the well which carries the liquid and gas to the surface. 7. P. are added if the formation pressure is not suffi-cient. 8. The r... pump is .. on a string of rods from a pumping unit. 9. Equipment is installed to remove i.. 10. The hydrocarbons can move easily through the pores or [.. into the reservoir