Maryland Del. Barbara Kreamer has pulled close behind Rep. Roy P. Dyson in campaign fund-raising as their Democratic primary election in the 1st Congressional District nears. In the Republican primary, Raymond J. Briscuso has opened a financial lead over seven others, according to campaign finance reports.

Reports also show that Maryland Gov. William Donald Schaefer, a Democrat strongly favored to win reelection, has raised 20 times as much as any Republican contender. Schaefer has given more than $47,000 to bolster Democratic incumbents in close races, including a $7,500 contribution to Montgomery County Executive Sidney Kramer.

With Maryland's Sept. 11 primary elections less than two weeks away, some candidates for the House of Representatives and state offices filed campaign finance disclosures yesterday. The reports show a late surge of money in Maryland's most hotly disputed congressional race.

Finance reports show that, between July 1 and Aug. 22, Dyson raised about $74,000 while Kreamer raised about $69,000. The reports for the two other Democrats, Morris C. Durham and Michael C. Hickey Jr., were not available.

Although Dyson holds a significant lead over Kreamer in fund-raisng for the year, $196,000 to $136,000, he has spent far more than she has. Dyson enters the campaign's home stretch with about $52,000 in the bank, while Kreamer has about $31,000.

Kreamer's campaign manager, Bob DeWeese, said yesterday that Kreamer will probably raise about $200,000 by election day, and that her flow of contributions indicates her campaign is gaining ground.

"We will have enough money to get our message out to voters on television, on the radio and in the mail," DeWeese said. The district includes Southern Maryland, the Eastern Shore and part of Harford County north of Baltimore. "We feel real good about where we are."

Desiree Green, a spokeswoman for Dyson, said campaign fund-raising is "going well."

Among Republicans, Briscuso has topped the field with $168,000 in contributions this year; perhaps more important, he has the most cash on hand for the home stretch, almost $49,000.

Former Capitol Hill aide Luis Luna ranked second financially, raising almost $92,000 and reporting about $17,000 in the bank. Two others, Calvert County Commissioner Mark Frazer and Perry Weed, a Talbot County lawyer, reported substantial personal loans to their campaigns. Frazer said he had lent his campaign $117,600 so far; Weed had made loans totaling $52,000.

Wayne T. Gilchrest, a Kent County educator who was the 1988 Republican nominee, has raised more than $48,000 for the year. Calvert County engineer Barry Sullivan raised $60,000.

Del. Richard F. Colburn of Dorchester raised more than $44,000. No figures were available for Charles Grace of Harford County.

In the governor's race, Schaefer has raised $2,030,213; no figures were available for his Democratic opponent, Anne Arundel county real estate agent Fred Griisser. Republican William S. Shepard, a former Foreign Service officer from Potomac, has raised $69,530 and Baltimore physician Ross Z. Pierpont has taken in $6,000, including a $5,000 loan from himself.

Along with his gift to Kramer, Schaefer gave $8,000 to state Senate Majority Leader Clarence W. Blount (D-Baltimore), who faces a spirited challenge in the primary. There are no limits on transfers between candidates in Maryland, and the governor gave contributions ranging from $500 to $5,000 to more than a dozen candidates for the General Assembly. His campaign still has nearly $750,000 in the bank.

Schaefer took in $86,076 during three weeks in August, including $10,000 from Maryland Coal PAC and $10,000 from the Presidents Round Table PAC, a group of prominent black businessmen.